Title of article
Near subgroups of groups Original Research Article
Author/Authors
D.G. Hoffman، نويسنده , , Sylvia Hobart، نويسنده , , Ronald C. Mullin، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1995
Pages
12
From page
97
To page
108
Abstract
A finite subset A of a group is a near subgroup if the number of ordered pairs (x, y) ϵ A2 with xy ⊂ A is at most /vb A /vb. We show here that if /vb A /vb ⩾ 5, then A is a near subgroup if and only if A ∪ {g} is a subgroup for some group element g. We also classify the counterexamples if /vb A /vb ⩽ 4.
Journal title
Discrete Mathematics
Serial Year
1995
Journal title
Discrete Mathematics
Record number
946191
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